Extrusion



FIG. 1 is a top perspective view of the extrusion showing our new design;

FIG. 2 is an enlarged front elevation view thereof, the rear elevation view being a mirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a left side elevation view thereof, the right side elevation view being a mirror image thereof.

The extrusion is shown with a symbolic break in its length. The appearance of any portion of the extrusion between the break lines forms no part of the claimed design.

The broken lines in the drawings illustrate portions of the extrusion that form no part of the claimed design. 

CLAIM The ornamental design for an extrusion, as shown and described. 